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Does Neptune have seasons and how often do they change?
Every planet has seasons, caused by their distance from the sun which alters over the course of the year, and which side is presented to the sun, which changes due to the fact that the planets have tilted axes. Neptune is full of turbulent gas, which can bring different temperatures across the planet.
Neptune is the furthest planet from the sun and has incredibly long seasons. Its next summer is expected to last 40 years!